$16 \overset{1}{:} 1 \overset{4}{-} 0 \overset{2}{*} 9 \overset{5}{-} 2 \overset{3}{*} 8 = 0$
1) 16 : 1 = 16;
2) 0 * 9 = 0;
3) 2 * 8 = 16;
4) 16 − 0 = 16;
5) 16 − 16 = 0.
 
$100 \overset{4}{+} (4 \overset{1}{-} 4) \overset{2}{*} 8 \overset{5}{-} 9 \overset{3}{*} 9 = 19$
1) 4 − 4 = 0;
2) 0 * 8 = 0;
3) 9 * 9 = 81;
4) 100 + 0 = 100;
5) 100 − 81 = 19.
 
$64 \overset{4}{:} (40 \overset{1}{:} 5) \overset{6}{-} (80 \overset{3}{-} 9 \overset{2}{*} 8) \overset{5}{:} 8 = 7$
1) 40 : 5 = 8;
2) 9 * 8 = 72;
3) 80 − 72 = 8;
4) 64 : 8 = 8;
5) 8 : 8 = 1;
6) 8 − 1 = 7.
 
$0 \overset{3}{:} 42 \overset{6}{+} 48 \overset{4}{:} 6 \overset{7}{+} (6 \overset{1}{*} 4 \overset{2}{+} 21) \overset{5}{:} 5 = 17$
1) 6 * 4 = 24;
2) 24 + 21 = 45;
3) 0 : 42 = 0;
4) 48 : 6 = 8;
5) 45 : 5 = 9;
6) 0 + 8 = 8;
7) 8 + 9 = 17.